Bed spring



J. LONDON Nov. 7, 1933.

BED SPRING Filed Feb. 24, 1952 1/ INVENTOR JOE LONDO/V. BY HTTQRNEY Patented Nov. 7, 1933 UNITED STATES 7 BED SPRING Joseph London, Brooklyn, N. Y.

Application February 24, 1932 Serial No. 594,770

1 Claim.' (Cl. 5260) This invention pertains to spring constructions of the type employed as bed or seat springs.

It is the object of the invention generally to improve the construction of bed and seat springs and so to construct such springs that mattresses or cushions carried thereby will be held against shifting relatively thereto.

A feature of the invention resides in a novel construction whereby a mattress or cushion positioning frame may be attached in a novel manner directly to the springs which form a portion of the device.

A further feature of the invention resides in a novel construction whereby the mattress or cushion positioning frame is supported in a plane above the uppermost convolutions of the several springs upon which the mattress or cushion is supported.

Other features of the invention relate to certain novel and improved constructions, arrangements and combinations of parts hereinafter described and particularly pointed out in the claim, the advantages of which will be readily understood and appreciated by those skilled in the art.

The invention will be clearly understood from the accompanying drawing illustrating the invention in its preferred form and the following detailed description of the construction therein shown.

In the drawing:-

Figure l is a perspective view of a bed spring constructed in accordance with the present invention, showing a mattress in position thereon,

Figure 2 is a fragmentary view in side elevation on an enlarged scale,

Figure 3 is a fragmentary sectional view taken at right angles to Figure 2, and

Figure 4 is a fragmentary plan view illustrating a portion of the spring and showing one complete spring element in plan.

Referring more specifically to the drawing, the reference character 5 designates a bed spring and 6 designates a mattress.

A spring constructed in accordance with the present invention includes a support preferably in the form of a rigid frame 8 which is herein illustrated as of rectangular form. This support is preferably formed of angle iron as best illustrated in Figures 2 and 3 and the angle irons are so positioned as to present a flat upper face 9 and a depending flange 10.

Brace bars 11 connect the side and end members with each other and in adition to forming braces for the frame 8, these bars provide means for mounting a plurality of springs 12. v

The springs 12 are preferably of the spiral coil type and are arranged preferably with that end in which the convolutions are of largest 0 diameter disposed uppermost. The several springs 12 may be secured to the brace bars 11 in any desired manner, but I prefer to employ Wire strands 13 which pass between the lower convolutions of the springs and beneath the 5 brace bars 11, the ends of the wire strands being attached to the frame 8.

The brace bars 11 are preferably in the form of narrow strips disposed on edge, the ends of these bars being twisted to provide portions 14 for engagement with the fiat faces 9 of the sup porting frame 5. Fastening means 15 preferably in the form of rivets may be employed to secure the brace bars to the frame.

Certain of the coil springs, i. e., those which form a series of springs defining the edges of the supporting frame 5, are formed in their upper convolution with a loop 15 the loop being formed by bending upwardly the uppermost convolution of the springs so provided as indicated at 16 in Figure 2. As illustrated at 17 in Figure 4, the uppermost convolution of each of these springs is distorted to such an extent at least, that a portion of the uppermost convolution will extend or project to a point slightly beyond the side or end edges of the supporting frame 5 as indicated at 18 in Figure 4.

Means is provided to prevent shifting of the mattress 6 and this means is herein illustrated as a rectangular frame 20. This frame 20 is 949 formed preferably from angle iron so positioned as to provide a depending flange 21. The frame 20 is also preferably of larger dimension, that is to say, longer and Wider than the supporting frame 5 and occupies a position slightly outside of said supporting frame as illustrated in Figure 4.

This frame 20 carries at intervals, a plurality of studs 25 and these studs are adapted for reception in the loops 15 of those coil springs which form the outer series of springs, and they form 10 themeans by which the frame 20 may be secured to said coil springs.

By reference to Figures 2 and 3 it will be readily apparent that with the parts in the position shown, a mattress supported upon the springs 12 will occupy a position within the frame 20 which will serve to keep the mattress from shifting and insure it maintaining proper position upon the spring at all times. I

From the foregoing, it will be readily apparent novel bed spring which is of simple construction and which is highly efficient in its function to maintain in proper position, a mattress thereon.

While the invention has been herein illustrated in a preferred form, it is to be understood that the invention is not to be limited to the specific construction herein shown, and that it is capable of embodiment in such other forms as rightfully fall within the scope of the appended claim.

Having thus described the invention, what is claimed as new and what it is desired to secure by Letters-Patent of the United States, is;

A bed spring construction comprising a rigid supporting frame, a plurality of coil springs mounted on said supporting frame, said coil springs extending vertically from the supporting frame with certain of said springs forming an outer series conforming in shape to the shape of the supporting frame, a loop formed in the uppermost convolution of each spring in said outer series of springs, each convolution in which a loop is formed being distorted outwardly and upwardly to throw the loop thereof beyond the sides of the supporting frame and to a plane above the top of the spring, a rigid frame corresponding in shape to, but larger than the supporting frame, said second mentioned frame being formed from angle iron with its horizontal flange disposed outwardly of the frame and said second mentioned frame being of a size to be received within the distorted portions of the several springs of the outer series of springs with the loops of said springs positioned exteriorly of the vertical flange of the angle iron from which the second mentioned frame is formed but within the confines of the outer edge of said second mentioned frame and immediately beneath the horizontal flanges of the angle iron from which said frame is formed, and studs extending through the vertical flanges of the second mentioned frame and through the loops of the springs which form the outer series of springs for securing the second mentioned frame to the springs which form the said outer series of springs.

JOSEPH LONDON. 

